CN207800797U - A kind of lithium battery pack with defencive function - Google Patents

Abstract

The utility model is related to technical field of lithium batteries,Specially a kind of lithium battery pack with defencive function,Including shell,Cover top portion is connected to sealing plate,And sealing plate top center is provided with positive column,Positive column top center is fixed with the positive electrode being integrated with,And shell inside bottom is provided centrally with negative electricity column,Negative electricity column bottom center is connected to the negative electrode being integrated with,And it is closely fitted with waterproof layer on the inside of shell,Insulating layer is equipped on the inside of waterproof layer,This kind has the lithium battery pack of defencive function,In order to reduce the excessively high problem of lithium battery production cost,Aluminium sheet on the outside of collector,Aluminium sheet uses pure aluminum material,Its pure aluminum material production cost is very low,And there is good heat conductivility,Heat conduction can be carried out it to heat caused by collector and disperse its heat,Reduce collector inside because temperature is excessively high damage the case where,And both ends is descended to be equipped with safe ventilation mouth on the current collector,The performance of ventilating in lithium battery can be improved.

Description

A kind of lithium battery pack with defencive function

Technical field

The utility model is related to technical field of lithium batteries, specially a kind of lithium battery pack with defencive function.

Background technology

With the development of science and technology and the raising of the people's material and cultural life level, people get over the demand of battery Come bigger, the requirement to the performance of battery is also higher and higher.The demand of development and military equipment in particular with space technology, A large amount of industrial, civilian, portable medical electronic product appearances caused by the fast development of information and microelectronics industry, electricity The development and exploitation of electrical automobile and the enhancing of environmental protection consciousness, people are light-weight to small, and high-energy safely may be used It leans on, pollution-free, the demand for the battery used that can charge repeatedly is more urgent, and lithium battery is exactly to be rapidly developed under this form The novel high-energy secondary cell come,

But the existing lithium battery pack with defencive function, since some protection materials costs are excessively high, producer exists In production process, its poor material is usually selected, therefore it is easy to appear damage during lithium battery use, it is caused to use the longevity Life reduces, and the protection structure design of lithium battery is very little, in use, internal since lithium battery interior temperature is excessively high The heat conduction of heat and heat dissipation performance are too low, it is easy to cause internal structure to be damaged because of high temperature, in addition people holds when contact Easily there are electrocution conditions, security performance is unable to get guarantee.

So how to design a kind of lithium battery pack with defencive function, becoming us will currently solve the problems, such as.

Utility model content

The purpose of this utility model is to provide a kind of lithium battery packs with defencive function, to solve above-mentioned background skill It is proposed that producer in process of production, usually selects its poor material, therefore since some protection materials costs are excessively high in art It is easy to appear damage during lithium battery use, the problem of causing its service life to reduce.

To achieve the above object, the utility model provides the following technical solutions：A kind of lithium battery group with defencive function Part, including shell, the cover top portion is connected to sealing plate, and sealing plate top center is provided with positive column, the positive column Top center is fixed with the positive electrode being integrated with, and shell inside bottom is provided centrally with negative electricity column, negative electricity column bottom Portion center is connected to the negative electrode being integrated with, and waterproof layer is closely fitted on the inside of shell, is equipped on the inside of the waterproof layer Insulating layer, and oxygen-proof film is fixedly connected on the inside of insulating layer, it is closely fitted with nanometer fireproof layer on the inside of the oxygen-proof film, and Positive column inner right side is provided with safe ventilation mouth, gasket is fixedly connected with inside the positive column, and two above and below shell inside End margin is connected to Raschig ring, collector is provided on the inside of the nanometer fireproof layer, and be closely fitted with aluminium sheet on the outside of collector.

Further, the positive electrode is used cooperatively with negative electrode, and lateral symmetry with negative electrode, and positive electrode and positive electricity Column is fixedly connected.

Further, positive column genesis analysis vertical with negative electricity column point-blank, and positive column through setting On sealing plate.

Further, the shape of the nanometer fireproof layer be " circular ring shape ", thickness 0.5cm, and nanometer fireproof layer and Aluminium sheet fits closely.

Further, the insulating layer is distributed between waterproof layer and oxygen-proof film, and insulating layer is in contact with waterproof layer.

Further, the safe ventilation mouth is equipped with 2, a diameter of 0.35cm altogether, and safe ventilation mouth is distributed respectively In positive column and negative electricity column.

Compared with prior art, the utility model has the beneficial effects that：This kind has the lithium battery pack of defencive function, is The excessively high problem of lithium battery production cost, the aluminium sheet on the outside of collector are reduced, aluminium sheet uses pure aluminum material, pure aluminum material Production cost is very low, and has good heat conductivility, it heat conduction dispersion can be carried out to heat caused by collector Its heat reduces inside collector because temperature is excessively high to be damaged the case where, and descends both ends to be equipped with safe ventilation on the current collector Mouthful, the performance of ventilating in lithium battery can be improved, heat can also be distributed from safe ventilation mouth, improve dissipating for lithium battery Hot property, to increase its protective value, nano material used by nanometer fireproof layer, heat resistance is high, is common resistance to The three to four-fold of hot material, the upper limit temperature of heat tolerance are 1100 degrees Celsius, and the heat resistance of lithium battery is allowed to improve a lot, in order to The protective value for further increasing lithium battery, has been additionally provided with insulating layer, which can be very good control lithium battery interior electric current Unstability energy, reduce people when contacting lithium battery, the case where electric shock.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the insulating layer partial structural diagram of the utility model；

Fig. 3 is the collector partial structural diagram of the utility model；

In figure：1- shells；2- sealing plates；3- positive electrodes；4- positive columns；5- waterproof layers；6- nanometer fireproof layers；7- is anti-oxidation Film；8- insulating layers；9- negative electricity columns；10- negative electrodes；11- Raschig rings；12- safe ventilation mouths；13- gaskets；14- collectors；15- Aluminium sheet.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that term "upper", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.

- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of lithium battery pack with defencive function, Including shell 1, the top of shell 1 is connected to sealing plate 2, and 2 top center of sealing plate is provided with positive column 4, in 4 top of positive column The heart is fixed with the positive electrode 3 being integrated with, and 1 inside bottom of shell is provided centrally with negative electricity column 9,9 bottom centre of negative electricity column It is connected to the negative electrode 10 being integrated with, and 1 inside of shell is closely fitted with waterproof layer 5,5 inside of waterproof layer is equipped with insulating layer 8, and 8 inside of insulating layer is fixedly connected with oxygen-proof film 7,7 inside of oxygen-proof film is closely fitted with nanometer fireproof layer 6, and positive electricity 4 inner right side of column is provided with safe ventilation mouth 12, and gasket 13, and 1 inside upper and lower ends of shell are fixedly connected with inside positive column 4 Side edge has Raschig ring 11, and 6 inside of nanometer fireproof layer is provided with collector 14, and 14 outside of collector is closely fitted with aluminium sheet 15；Positive electrode 3 is used cooperatively with negative electrode 10, and lateral symmetry with negative electrode 10, and positive electrode 3 is fixedly connected with positive column 4； The genesis analysis vertical with negative electricity column 9 of positive column 4 point-blank, and positive column 4 through be arranged on sealing plate 2；Nanometer is anti- The shape of fire bed 6 is " circular ring shape ", thickness 0.5cm, and nanometer fireproof layer 6 is fitted closely with aluminium sheet 15；Insulating layer 8 is distributed Between waterproof layer 5 and oxygen-proof film 7, and insulating layer 8 is in contact with waterproof layer 5；Safe ventilation mouth 12 is equipped with 2 altogether, directly Diameter is 0.35cm, and safe ventilation mouth 12 is respectively distributed in positive column 4 and negative electricity column 9.

Operation principle：First, the electric current that lithium battery is accommodated is stored in the collector 14 inside aluminium sheet 15, and current collection Electric current inside body 14 is bidirectional current, and when being worked, the electric current inside collector 14 can be respectively from positive column 4 Positive electrode 3 releases electric current with the negative electrode 10 in negative electricity column 9, to which driving device is operated, is being transported for device Stable electric current is provided during turn, aluminium sheet 15 has good heat conductivility, therefore collector 14 is generated at work Heat can disperse its heat by aluminium sheet 15, reduce the heat inside collector 14, and hot caused by lithium battery interior Amount can be discharged by safe ventilation mouth 12, and also have nanometer fireproof layer 6 outside aluminium sheet 15, and nano material heat resistance is fabulous, Combine utilization with nanometer fireproof layer 6 by aluminium sheet 15, substantially increases the heat resistance of lithium battery interior, and nanometer fireproof There is oxygen-proof film 7, insulating layer 8 and waterproof layer 5 in 6 outside of layer, improves the antioxygenic property and water resistance of lithium battery, and people For that when contacting lithium battery, the case where electric shock will not occur, lithium battery is further improved by these three structures Protective value.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of lithium battery pack with defencive function, including shell（1）, it is characterised in that：The shell（1）Top connects There is sealing plate（2）, and sealing plate（2）Top center is provided with positive column（4）, the positive column（4）Top center be fixed with Its positive electrode being integrated（3）, and shell（1）Inside bottom is provided centrally with negative electricity column（9）, the negative electricity column（9）In bottom The heart is connected to the negative electrode being integrated with（10）, and shell（1）Inside is closely fitted with waterproof layer（5）, the waterproof layer（5） Inside is equipped with insulating layer（8）, and insulating layer（8）Inside is fixedly connected with oxygen-proof film（7）, the oxygen-proof film（7）Inside is tight It is close to be fitted with nanometer fireproof layer（6）, and positive column（4）Inner right side is provided with safe ventilation mouth（12）, the positive column（4）It is interior Portion is fixedly connected with gasket（13）, and shell（1）Inside upper and lower ends side edge has Raschig ring（11）, the nanometer fireproof layer （6）Inside is provided with collector（14）, and collector（14）Outside is closely fitted with aluminium sheet（15）.

2. a kind of lithium battery pack with defencive function according to claim 1, it is characterised in that：The positive electrode （3）With negative electrode（10）It is used cooperatively, and and negative electrode（10）It is lateral symmetry, and positive electrode（3）With positive column（4）It is fixed to connect It connects.

3. a kind of lithium battery pack with defencive function according to claim 1, it is characterised in that：The positive column （4）With negative electricity column（9）Vertical genesis analysis point-blank, and positive column（4）Through setting in sealing plate（2）On.

4. a kind of lithium battery pack with defencive function according to claim 1, it is characterised in that：The nanometer fireproof Layer（6）Shape be " circular ring shape ", thickness 0.5cm, and nanometer fireproof layer（6）With aluminium sheet（15）It fits closely.

5. a kind of lithium battery pack with defencive function according to claim 1, it is characterised in that：The insulating layer （8）It is distributed in waterproof layer（5）With oxygen-proof film（7）Between, and insulating layer（8）With waterproof layer（5）It is in contact.

6. a kind of lithium battery pack with defencive function according to claim 1, it is characterised in that：The safe ventilation Mouthful（12）It is equipped with 2, a diameter of 0.35cm, and safe ventilation mouth altogether（12）It is respectively distributed to positive column（4）With negative electricity column（9） In.